EP 4174116 A1 20230503 - WATER-SOLUBLE FILM AND PACKAGING
Title (en)
WATER-SOLUBLE FILM AND PACKAGING
Title (de)
WASSERLÖSLICHE FOLIE UND VERPACKUNG
Title (fr)
FILM HYDROSOLUBLE, ET EMBALLAGE
Publication
Application
Priority
- JP 2020111940 A 20200629
- JP 2021022539 W 20210614
Abstract (en)
[Problem to be solved] To provide a water-soluble film that is excellent in high-speed printability and moisture resistance.[Solution] A water-soluble film containing a polyvinyl alcohol resin, wherein the water-soluble film has a surface on at least one side in which an abundance ratio of carbon-oxygen single bond (C-O) in all carbon element bonds obtained by X-ray photoelectron spectroscopy is in the range of 75 to 85%.
IPC 8 full level
C08J 5/18 (2006.01); B65D 65/46 (2006.01); C08J 7/00 (2006.01)
CPC (source: EP US)
C08J 3/28 (2013.01 - US); C08J 5/18 (2013.01 - EP US); C08J 7/12 (2013.01 - EP); C08J 2300/14 (2013.01 - EP); C08J 2329/04 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4174116 A1 20230503; EP 4174116 A4 20240717; CN 115916658 A 20230404; JP WO2022004345 A1 20220106; US 2023250245 A1 20230810; WO 2022004345 A1 20220106
DOCDB simple family (application)
EP 21831991 A 20210614; CN 202180046098 A 20210614; JP 2021022539 W 20210614; JP 2022533808 A 20210614; US 202118003793 A 20210614